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122805883142 = 21491759234281
BaseRepresentation
bin111001001011111001…
…1010001000100000110
3102201222112221020120022
41302113303101010012
54003001301230032
6132225524135142
711605146532505
oct1622763210406
9381875836508
10122805883142
11480997a0708
121b9735374b2
13b7715c4357
145d2dc5c83c
1532db4a3512
hex1c97cd1106

122805883142 has 16 divisors (see below), whose sum is σ = 185551344000. Its totient is φ = 60955907520.

The previous prime is 122805883141. The next prime is 122805883159. The reversal of 122805883142 is 241388508221.

It is a junction number, because it is equal to n+sod(n) for n = 122805883093 and 122805883102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122805883141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407042 + ... + 641322.

It is an arithmetic number, because the mean of its divisors is an integer number (11596959000).

Almost surely, 2122805883142 is an apocalyptic number.

122805883142 is a deficient number, since it is larger than the sum of its proper divisors (62745460858).

122805883142 is a wasteful number, since it uses less digits than its factorization.

122805883142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236191.

The product of its (nonzero) digits is 245760, while the sum is 44.

The spelling of 122805883142 in words is "one hundred twenty-two billion, eight hundred five million, eight hundred eighty-three thousand, one hundred forty-two".

Divisors: 1 2 149 298 1759 3518 234281 262091 468562 524182 34907869 69815738 412100279 824200558 61402941571 122805883142